I see. So lets recap.
You download BOTH RO files from
Rag & Sakray 0726 
Than Copy and paste the following into the text file then save it as sclientinfo.xml and put it in your data folder:
<?xml version="1.0" ?>
<clientinfo>
<desc>Ragnarok Client Information - Taiwan Version</desc>
<servicetype>korea</servicetype>
<servertype>sakray</servertype>
<connection>
<display>RMS Test Server</display>
<desc>
http://play.ratemyserver.net</desc>
<address>66.79.162.235</address>
<port>6900</port>
<version>20</version>
<langtype>7</langtype>
<registrationweb></registrationweb>
</connection>
</clientinfo>
Run your exe and pick RMS server and begin to play?